package dao;

import java.util.List;

import entity.Customer;

public interface CustomerDao {
	
	public Customer queryCustomer(String userName,String password);
	public void addCustomer(Customer customer);
	public void updateCustomer(Customer customer);
	public Customer queryCustomer(int customerId);
	public boolean queryCustomerExists(String userName);
	public List<Customer> queryAllCustomer();
}
